Modified zeolite beta, processes for preparation and use thereof

Details Modified zeolite beta, processes for preparation and use thereof Modified zeolite beta, processes for preparation and use thereof

1995-05-30

1996-06-04

Myers, Helane

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208111, 585474, 585467, 585475, 585739, C10G 1102

Patent

active

055229840

ABSTRACT:
This invention relates to a novel zeolite which has the crystal structure of zeolite beta. The novel zeolite SN-beta has a unique infrared absorbance spectrum, shows enhanced activity for transalkylation of di-isopropyl-benzene and shows less deactivation for cumene synthesis. The zeolite beta is prepared by taking an as-synthesized zeolite beta, steam treating it and then ammonium ion treating it to give a zeolite SN-beta with enhanced catalytic properties.

REFERENCES:
patent: Re28341 (1975-02-01), Wadlinger
patent: 3308069 (1967-05-01), Wadlinger
patent: 4301316 (1981-11-01), Young
patent: 4642226 (1987-02-01), Calvert et al.
patent: 4923690 (1990-05-01), Valyocsik et al.
patent: 5139761 (1992-08-01), Nair et al.
patent: 5227558 (1993-07-01), Shamshoum et al.

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